CN107473745A - A kind of preparation method of water lubriucated bearing impregnated graphite materials - Google Patents

A kind of preparation method of water lubriucated bearing impregnated graphite materials Download PDF

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Publication number
CN107473745A
CN107473745A CN201710601249.1A CN201710601249A CN107473745A CN 107473745 A CN107473745 A CN 107473745A CN 201710601249 A CN201710601249 A CN 201710601249A CN 107473745 A CN107473745 A CN 107473745A
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blank
mesh
minutes
graphite
shaping
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袁小阳
贾谦
张爽
边志辉
孙菲
李双江
曾群锋
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Xian Jiaotong University
Xian Shaangu Power Co Ltd
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Xian Jiaotong University
Xian Shaangu Power Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
    • C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/522—Graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48—Macromolecular compounds
    • C04B41/4823—Phenol-formaldehyde condensation products
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/82—Coating or impregnation with organic materials
    • C04B41/83—Macromolecular compounds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/16—Sliding surface consisting mainly of graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/608—Green bodies or pre-forms with well-defined density
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

A kind of preparation method of water lubriucated bearing impregnated graphite materials, it is placed in high-speed mixer and mixes using 200 mesh coke 75-79%, 200 mesh carbon blacks 7-9%, 200 mesh amorphous graphite powder 9-11%, iron oxide red 5%, batch mixing is pressed into certain pressure, carry out part blank shaping, the blank of shaping is placed in graphitizing furnace and sintered, baking temperature range is 500-3500 DEG C, realize different degrees of graphitization, it is then immersed in dipping kettle and is impregnated 200 minutes and solidified at a temperature of 110 150 DEG C with phenolic resin, is finally machined according to the design needs；The technique has the characteristics that less, without machining, section material, non-environmental-pollution, can not only improve the mechanical performance and frictional behaviour of bearing graphite material, while reduces the wear extent of graphite material, so as to improve the performance of graphite bearing.

Description

A kind of preparation method of water lubriucated bearing impregnated graphite materials
Technical field
The present invention relates to a kind of production Technology of high-temperature firing graphite bearing material, more particularly to a kind of water lubrication shaft The preparation method of impregnated graphite materials is held, the degree of graphitization of graphite material is controlled according to firing temperature, and then control graphite material Machinery and tribological property.
Background technology
High-temperature firing graphite refers to use coke and pitch for raw material, and sintering forms at high temperature.It is in addition it is also possible to logical Cross using graphite powder as raw material, by adding various binding agents, fire form at high temperature.The material tool that such a processing mode obtains There is controlled shape, less, without machining, the features such as saving material, can produce has a property and other techniques are difficult to the material that produces Material.
Impregnated graphite refers to use synthetic resin impregnated graphite, to clog its surface and internal void, is then heat-treated Make resin solidification and be made.As a kind of important water lubriucated bearing antifriction layer material, impregnated graphite have self-lubricating property it is good, Thermal coefficient of expansion is small, high temperature resistant, corrosion-resistant, thermal conductivity is good, chemical property is stable and the premium properties such as nontoxic, but firing temperature Control can strictly not cause that graphite material mechanical performance and tribological property are unstable, especially in some visual plants, stone Ink material quality is unqualified, can influence graphite bearing performance.
The content of the invention
In order to overcome above-mentioned high-temperature firing water lubriucated bearing impregnated graphite because firing temperature controls insufficient and caused property Can be unstable the problem of, it is an object of the invention to provide a kind of preparation method of water lubriucated bearing impregnated graphite materials, for leaching The control of the burning process of stain graphite, particularly firing temperature, the mechanicalness for firing obtained graphite material can be effectively improved While wear extent during as bearing material can be reduced with tribological property and its stability.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of preparation method of water lubriucated bearing impregnated graphite materials, comprises the following steps：
First step dispensing：Composition of raw material and weight ratio are as follows：
Using 200 mesh coke 75-79%, 200 mesh carbon blacks 7-9%, 200 mesh amorphous graphite powder 9-11%, iron oxide red 5%；
Second step batch mixing：First coke, carbon black, graphite powder are sufficiently mixed to obtain filler, iron oxide red is then added, adds and account for Raw material gross weight 5-10% asphaltic resin is placed in homogenizer, mixing time is 30~60 minutes as adhesive；
3rd one-step forming：Batch mixing to be pressed into 10MP~15MP pressure, carries out part blank shaping, density is 1.737~ 1.995g/cm3；
4th step sinters：The bearing blank material of shaping is positioned in graphitizing furnace and sintered, under hydrogen gas protection, Sintering 36~48 hours, baking temperature range are 500-3500 DEG C, realize different degrees of graphitization；
5th step impregnates：The blank material sintered is immersed in 40 DEG C of phenolic resin, dip time is 200 minutes；
6th step solidifies：The blank of dipping is placed in 150 DEG C of resistance furnace, is kept for 300 minutes, solidified；
7th step is machined：To the blank after solidification, it is processed according to size requirement.
Because present invention employs specific agglomerated material granularity component and sintering temperature, obtained impregnated graphite materials Xiao Family name's hardness reaches 93.4mm；Compression strength reaches 216.11MPa；Rupture strength reaches 78.20MPa；Coefficient of friction average value is 0.200—0.226。
The present invention is using coke, carbon black, graphite powder, iron oxide red, pitch, resin etc., by mixing, compressing, sintering, leaching Stain, solidification, machining form water lubriucated bearing impregnated graphite, and bearing stone can not only be improved using powder sintered impregnated graphite The mechanical performance and frictional behaviour of ink material, while the wear extent of graphite material is reduced, so as to improve the property of graphite bearing Energy.
Embodiment
The present invention is described in detail with reference to embodiment.
Embodiment one
What the production technology of the present embodiment was realized in：
First step dispensing：Composition of raw material and weight ratio are as follows：Using 200 mesh coke 77%, 200 mesh carbon blacks 8%, 200 Mesh amorphous graphite powder 10%, iron oxide red 5%；
Second step batch mixing：First coke, carbon black, graphite powder are sufficiently mixed to obtain filler, iron oxide red is then added, adds and account for The asphaltic resin of raw material gross weight 10% is placed in homogenizer, mixing time is 30 minutes as adhesive；
3rd one-step forming：Batch mixing is pressed into 10MP pressure, carries out part blank shaping, density 1.904g/cm3；
4th step sinters：The bearing blank material of shaping is positioned in graphitizing furnace and sintered, under hydrogen gas protection, Sintering 48 hours, firing temperature are 1000 DEG C, realize graphitization；
5th step impregnates：The blank material sintered is immersed in 40 DEG C of phenolic resin, dip time is 200 minutes；
6th step solidifies：The blank of dipping is placed in 150 DEG C of resistance furnace, is kept for 300 minutes, solidified；
7th step is machined：To the blank after solidification, it is processed according to size requirement, machining accuracy IT9.
This sample result of test evaluation, impregnated graphite materials Shore hardness are 93.4mm；Compression strength is 216.11MPa； Rupture strength is 78.20MPa；Coefficient of friction average value is 0.226；Volume wear is 0.26mm3。
Embodiment two
What the production technology of the present embodiment was realized in：
First step dispensing：Composition of raw material and weight ratio are as follows：Using 200 mesh coke 77%, 200 mesh carbon blacks 8%, 200 Mesh amorphous graphite powder 10%, iron oxide red 5%；
Second step batch mixing：First coke, carbon black, graphite powder are sufficiently mixed to obtain filler, iron oxide red is then added, adds and account for The asphaltic resin of raw material gross weight 10% is placed in homogenizer, mixing time is 40 minutes as adhesive；
3rd one-step forming：Batch mixing is pressed into 12MP pressure, carries out part blank shaping, density 1.943g/cm3；
4th step sinters：The bearing blank material of shaping is positioned in graphitizing furnace and sintered, under hydrogen gas protection, Sintering 42 hours, firing temperature are 1500 DEG C, realize graphitization；
5th step impregnates：The blank material sintered is immersed in 40 DEG C of phenolic resin, dip time is 200 minutes；
6th step solidifies：The blank of dipping is placed in 150 DEG C of resistance furnace, is kept for 300 minutes, solidified；
7th step is machined：To the blank after solidification, it is processed according to size requirement, machining accuracy IT9.
This sample result of test evaluation, impregnated graphite materials Shore hardness are 91.5mm；Compression strength is 205.45MPa； Rupture strength is 76.46MPa；Coefficient of friction average value is 0.203；Volume wear is 0.27mm3。
Embodiment three
What the production technology of the present embodiment was realized in：
First step dispensing：Composition of raw material and weight ratio are as follows：Using 200 mesh coke 77%, 200 mesh carbon blacks 8%, 200 Mesh amorphous graphite powder 10%, iron oxide red 5%；
Second step batch mixing：First coke, carbon black, graphite powder are sufficiently mixed to obtain filler, iron oxide red is then added, adds and account for The asphaltic resin of raw material gross weight 10% is placed in high-speed mixer, mixing time is 60 minutes as adhesive；
3rd one-step forming：Batch mixing is pressed into 15MP pressure, carries out part blank shaping, density 1.995g/cm3；
4th step sinters：The bearing blank material of shaping is positioned in graphitizing furnace and sintered, under hydrogen gas protection, Sintering 36 hours, firing temperature are 3000 DEG C, realize graphitization；
5th step impregnates：The blank material sintered is immersed in 40 DEG C of phenolic resin, dip time is 200 minutes；
6th step solidifies：The blank of dipping is placed in 150 DEG C of resistance furnace, is kept for 300 minutes, solidified；
7th step is machined：To the blank after solidification, it is processed according to size requirement, machining accuracy IT9.
This sample result of test evaluation, impregnated graphite materials Shore hardness are 80.8mm；Compression strength is 179.40MPa； Rupture strength is 55.71MPa；Coefficient of friction average value is 0.200；Volume wear is 0.42mm3。
Three sample results of overall merit, it disclosure satisfy that product technology requirement.It is but real from integrated performance index and production Border considers, second example approach best results.

Claims (2)

1. a kind of preparation method of water lubriucated bearing impregnated graphite materials, it is characterised in that comprise the following steps：
First step dispensing：Composition of raw material and weight ratio are as follows：
Using 200 mesh coke 75-79%, 200 mesh carbon blacks 7-9%, 200 mesh amorphous graphite powder 9-11%, iron oxide red 5%；
Second step batch mixing：First coke, carbon black, graphite powder are sufficiently mixed to obtain filler, iron oxide red is then added, adds and account for former material Expect that gross weight 5-10% asphaltic resin as adhesive, is placed in homogenizer, mixing time is 30~60 minutes；
3rd one-step forming：Batch mixing is pressed into 10MP~15MP pressure, carries out part blank shaping, density is 1.737~1.995g/ cm3；
4th step sinters：The bearing blank material of shaping is positioned in graphitizing furnace and sintered, under hydrogen gas protection, sintering 36~48 hours, baking temperature range was 500-3500 DEG C, realizes different degrees of graphitization；
5th step impregnates：The blank material sintered is immersed in 40 DEG C of phenolic resin, dip time is 200 minutes；
6th step solidifies：The blank of dipping is placed in 150 DEG C of resistance furnace, is kept for 300 minutes, solidified；
7th step is machined：To the blank after solidification, it is processed according to size requirement.
A kind of 2. preparation method of water lubriucated bearing impregnated graphite materials according to claim 1, it is characterised in that including Following steps：
First step dispensing：Composition of raw material and weight ratio are as follows：Using 200 mesh coke 77%, 200 mesh carbon blacks 8%, 200 mesh soil Shape graphite powder 10%, iron oxide red 5%；
Second step batch mixing：First coke, carbon black, graphite powder are sufficiently mixed to obtain filler, iron oxide red is then added, adds and account for raw material The asphaltic resin of gross weight 10% is placed in homogenizer, mixing time is 40 minutes as adhesive；
3rd one-step forming：Batch mixing is pressed into 12MP pressure, carries out part blank shaping, density 1.943g/cm3；
4th step sinters：The bearing blank material of shaping is positioned in graphitizing furnace and sintered, under hydrogen gas protection, sintering 42 hours, firing temperature was 1500 DEG C, realizes graphitization；
5th step impregnates：The blank material sintered is immersed in 40 DEG C of phenolic resin, dip time is 200 minutes；
6th step solidifies：The blank of dipping is placed in 150 DEG C of resistance furnace, is kept for 300 minutes, solidified；
7th step is machined：To the blank after solidification, it is processed according to size requirement, machining accuracy IT9.
CN201710601249.1A 2017-07-21 2017-07-21 A kind of preparation method of water lubriucated bearing impregnated graphite materials Pending CN107473745A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108410054A (en) * 2018-04-20 2018-08-17 常州达奥新材料科技有限公司 A kind of preparation method of compound water lubricating bearing material
CN114804876A (en) * 2022-03-09 2022-07-29 哈尔滨电碳厂有限责任公司 Preparation method of high-wear-resistance end face sealing graphite material
CN116789452A (en) * 2022-10-12 2023-09-22 湖北东南佳新材料有限公司 Carbon bearing or shaft sleeve for electric automobile electronic water pump

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CN102745991A (en) * 2012-06-26 2012-10-24 宁波东联密封件有限公司 Molded sintered graphite sealing ring and preparation method thereof
CN102887497A (en) * 2011-07-19 2013-01-23 无锡中强电碳有限公司 One-step moulding production method of carbon-graphite material
CN105074243A (en) * 2013-04-01 2015-11-18 东洋炭素株式会社 Carbon material for bearings and sliding member formed of carbon material for bearings
CN105777126A (en) * 2016-03-07 2016-07-20 湖南省长宇新型炭材料有限公司 Method for manufacturing large-specification carbon graphite sealing material matrix
CN106350006A (en) * 2016-07-19 2017-01-25 邢台翔九石墨制造有限公司 Graphite sealing material and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN102887497A (en) * 2011-07-19 2013-01-23 无锡中强电碳有限公司 One-step moulding production method of carbon-graphite material
CN102745991A (en) * 2012-06-26 2012-10-24 宁波东联密封件有限公司 Molded sintered graphite sealing ring and preparation method thereof
CN105074243A (en) * 2013-04-01 2015-11-18 东洋炭素株式会社 Carbon material for bearings and sliding member formed of carbon material for bearings
CN105777126A (en) * 2016-03-07 2016-07-20 湖南省长宇新型炭材料有限公司 Method for manufacturing large-specification carbon graphite sealing material matrix
CN106350006A (en) * 2016-07-19 2017-01-25 邢台翔九石墨制造有限公司 Graphite sealing material and preparation method thereof

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108410054A (en) * 2018-04-20 2018-08-17 常州达奥新材料科技有限公司 A kind of preparation method of compound water lubricating bearing material
CN114804876A (en) * 2022-03-09 2022-07-29 哈尔滨电碳厂有限责任公司 Preparation method of high-wear-resistance end face sealing graphite material
CN116789452A (en) * 2022-10-12 2023-09-22 湖北东南佳新材料有限公司 Carbon bearing or shaft sleeve for electric automobile electronic water pump

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